<!DOCTYPE html>
<html class="reftest-wait">
  <head>
    <title>displaystyle</title>
    <meta charset="utf-8"/>
    <script type="text/javascript">
      function doTest() {
        document.getElementById("m1").setAttribute("displaystyle", "true");
        document.getElementById("m2").setAttribute("displaystyle", "true");
        document.getElementById("m3").setAttribute("displaystyle", "true");
        document.getElementById("m4").removeAttribute("displaystyle");
        document.getElementById("m5").removeAttribute("displaystyle");
        document.getElementById("m6").removeAttribute("displaystyle");
        document.documentElement.removeAttribute("class");
      }
      window.addEventListener("MozReftestInvalidate", doTest, false);
    </script>
  </head>
  <body>

    <!-- Test dynamic change of displaystyle -->
    <math id="m1">
      <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
      <mfrac><mi>x</mi><mi>y</mi></mfrac>
    </math>
    <math>
      <mstyle id="m2">
        <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
        <mfrac><mi>x</mi><mi>y</mi></mfrac>
      </mstyle>
    </math>
    <math>
      <mtable id="m3">
        <mtr>
          <mtd>
            <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
            <mfrac><mi>x</mi><mi>y</mi></mfrac>
          </mtd>
        </mtr>
      </mtable>
    </math>
    <math id="m4" displaystyle="true">
      <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
      <mfrac><mi>x</mi><mi>y</mi></mfrac>
    </math>
    <math>
      <mstyle id="m5" displaystyle="true">
        <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
        <mfrac><mi>x</mi><mi>y</mi></mfrac>
      </mstyle>
    </math>
    <math>
      <mtable id="m6" displaystyle="true">
        <mtr>
          <mtd>
            <munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
            <mfrac><mi>x</mi><mi>y</mi></mfrac>
          </mtd>
        </mtr>
      </mtable>
    </math>

  </body>
</html>
